Incident triggered on Absence condition type when log-based metric is not absent

Question

I don't understand why an incident is being triggered looking at the following Policy details:

In the screenshot you can see that the incident is supposed to trigger after an absence time of 8 hours. The timeseries is representing the activity of the log-based metric of the last day. There is clearly no absence. Why is an incident being triggered? (you can see it in the incident section)

edit

adding more screenshot

Policy details over a week

Incidents details